Part Analysis
| General Data | – |
| Manufacturer (OEM) | CWT |
| Platform | CSZ |
| PCB Type | Double Sided |
| Primary Side | – |
| Transient Filter | 4x Y caps, 2x X caps, 2x CM chokes, 1x MOV |
| Inrush Protection | 1x NTC Thermistor SCK-207R0 (7 Ohm) & Relay |
| Bridge Rectifier(s) | 2x GBJ2510 (600V, 25A @ 100°C) |
| APFC MOSFETs | 2x Vishay SiHA105N60EF (650V, 19A @ 100°C, Rds(on): 0.125Ohm) |
| APFC Boost Diode | 1x Infineon IDH10G65C6 (650V, 10A @ 140°C) |
| Bulk Cap(s) | 2x Rubycon (420V, 680uF, 2,000h @ 105°C, MXE) |
| Main Switchers | 2x On Semiconductor NTPF110N65S3HF (650V, 19.5A @ 100°C, Rds(on): 0.110Ohm) |
| APFC Controller | Champion CM6500UNX |
| Resonant Controller | Champion CU6901VAC |
| Topology | Primary side: APFC, Half-Bridge & LLC converter Secondary side: Synchronous Rectification & DC-DC converters |
| Secondary Side | – |
| +12V MOSFETs | 8x Infineon BSC014N04LS (40V, 125A @ 100°C, Rds(on): 1.4mOhm) |
| 5V & 3.3V | DC-DC Converters: 2x UBIQ QN3107M6N (30V, 70A @ 100°C, Rds(on): 2.6mOhm) & 2x UBIQ QM3054M6 (30V, 61A @ 100°C, Rds(on): 4.8mOhm) PWM Controller(s): uPI-Semi uP3861P |
| Filtering Capacitors | Electrolytic: 3x Nichicon (2-5,000h @ 105°C, HD) 1x Nichicon (5-6,000h @ 105°C HV) 2x Nichicon (4-10,000h @ 105°C, HE) 1x Nippon Chemi-Con (2-5,000h @ 105°C, KZE) 1x Nippon Chemi-Con (4-10,000h @ 105°C, KYA) 1x Rubycon (2-10,000h @ 105°C, YXF)Polymer: 19x FPCAP, 3x Chemi-Con |
| Supervisor IC | Weltrend WT7502R |
| Fan Controller | Microchip PIC16F1503 |
| Fan Model | Hong Hua HA13525H12SF-Z (135mm, 12V, 0.5A, Fluid Dynamic Bearing Fan) |
| 5VSB Circuit | – |
| Rectifier | 1x D10S45L SBR (45V, 10A) |
| Standby PWM Controller | On-Bright OB2365T |
This is the CSZ platform by Channel Well Technology (CWT), widely used nowadays by brands that want to offer ATX v3.0 compatibility. The build quality is high, and the PCB is large enough to offer a decent distance between parts for good airflow. The capacitors selection couldn’t be better, with Rubycon as bulk caps and a mix of Rubycon, Nichicon, Chemi-Con, and FPCAP as filtering capacitors. A microcontroller for more precise control drives the fan through a PWM signal. Despite the PWM signal, which can offer low RPMs at light loads, minimizing noise output, Montech decided to offer a selectable semi-passive operation (fan-stop feature), which could be left out, to lower the production cost. Moreover, FDB fans are stressed during the start-up phase till the lubricant goes all over the shaft, so it is not the best option to have them frequently in start-stop scenarios. Speaking about the fan, Hong Hua provides it, and it is of good quality to outlive the long warranty.
We meet a half-bridge topology and an LLC resonant converter on the primary side. The secondary side employs a synchronous design for rectifying the 12V rail and a pair of DC-DC converters for the minor rails. The soldering quality is good, as usually is the case in CWT-made products.
Thankyou for your response.
I think I will go with Deepcool PX850G as it seems a good unit according to your review/testing (the 850W Montech Titan is £50 more expensive currently here in the UK).
Thanks for your hard work, love what you do.
Kind regards
anytime!
Hi Aris
Should the fact that this PSU failed one of your tests (transient response – 50% load, 3.3V) be of concern? And what does this mean in regards to everyday use for the average user.
Kind regards
The 3.3V rail is only lightly used by today’s PSUs, so it most likely won’t be a serious issue. But in any case, it would be better if it passed this test with success.
Hey Aris.
What do you think about Antec Signature line up?
I’m considering 1000w titanium or 1300w platinum unit. The price is decent here in Croatia. I saw your review of titanium unit back in 2020 and your opinion was positive!
Thanks for this review Aris!
Really strong showing, solid performance, here , from Montech. I didn’t expect that from an “outsider” .
With this, they are becoming a competitive option.
I PARTICULARLY liked the 150mm distance between the sata power connectors, FINALLY someone is listening and getting this thing right!
It sets is apart from the competition in my book.
Short distance between the sata can be frustrating even in midi cases.
That said, needs a little improvement here and there, but there’s nothing outright wrong with it.
Indeed someone listened finally, and put 150mm distance between peripheral connectors 🙂
I am choosing between Montech Titan Gold and Corsair RMx Shift, which one would you recommend?
It depends, if you need the side panel of the Shift. If not, you could save some money with the Montech unit since its normal price is around 170 dollars.